loved math and knew you had written some books what i didn't realize is you graduated from ucla suma cum laude. what is the excellence atmath? >> the paper is not as relevant as the books that i am writing now. i took my love of mathematics. i just love the beauty of math and i took my love of entertainment and i intiecombind them into entertaining math books. i teach math with comics and cartoons because i believe math can be fun >> this book in particular helps kids and parents understand common core. can you help us briefly explain common core. >> there are so many parents saying i don't know how to help my first and second graders with their math homework. they all figure come middle school they might need some extra help but they figured they would have their 6-year-old's math under control. with common core, things are more visual. they break down the numbers a lot more so i realized there was a need for a book and i wrote do not open this math book with parents and children in mind in fact, if he end of the book, i have new math translation guide for parents because a lot of the terms a